5 (Developing). Used in the market and for commerce, media, and travel by nearly all minority language speakers in the greater Rangpur-Dinajpur area. Rangpuri has reportedly been spoken in the area for centuries.

Strong vitality in West Bengal and parts of Assam near Koch Bihar. Vitality weakens east of Dhubri in Assam. Those farthest east in Assam tend to prefer Assamese over their mother tongue. All ages. Also use Assamese [asm], Bengali [ben].